compression test question

AJ/FormS said
You have the right ones. They are called umbrella for the exact reason you noted; they are basically just deflectors.The first time a valve opens the seal rides up and stays there.What you need to keep in mind is that at about the time the piston is pulling the hardest, the valve is nearly wide open and the deflector is sitting right where it needs to be.
To use the positive seals with the band clamps, the guide bosses would need to be machined.But they will really dry up your stems.

This valve stem seal replacement job I finished: replaced the seals, thoroughly cleaned the rocker arms, shaft, springs and areas around the valves and guides (It was a cruddy mess) and re-installed. I set the valve lash, installed new spark plug tube O-rings and a new valve cover gasket. The engine fired right up and runs very well. There’s zero blue smoke at start up, at idle, and at mid range RPM but it still smokes at full throttle. This was an inexpensive, not too time consuming worthwhile endeavor, but my question is, could the source of the smoking at high RPM indicate high oil volume working its way into the combustion chamber due to worn valve guides? (There is some wiggle in some of the valves.) Again, my compression numbers are 120-145-135-120-125-120. I still may spring for a full valve job but some smoking and oil consumption isn’t a big deal for what I use this machine for (lifting lumber).